TW201540614A - Packing box and box manufacturing apparatus - Google Patents

Abstract

The packing box (10) is provided with: a bottom wall (12); end walls (13A, 13B) that stand on first edges of the bottom wall (12); side walls (15A, 15B) that stand adjacent to the end walls (13A, 13B); edge walls (20) that are connected to the side edges of the end walls (13A, 13B) via outer wall folding lines (21); foldback walls (25) that are disposed on the inner surfaces of the edge walls (20); inner walls (27) that are disposed on the inner surfaces of the end walls (13A, 13B); and reinforcing walls (26) that are continuous with the foldback walls (25) via first folding lines (29) and are continuous with the inner walls (27) via second folding lines (30). The reinforcing walls (26) protrude toward the inside from between the foldback walls (25) and the inner walls (27). Of the first and second folding lines (29, 30), the first or second folding lines (29, 30) that are located on the outer wall folding line (21)-side of the apex of the protrusion are disposed at a distance (L3) from the outer wall folding lines (21).

Description

Packing box and box making device

The present invention relates to a package and a box making device.

When the package containing the product is transported and transported to the store, it is placed in a stacked state. Patent Document 1 discloses a package in which a reinforcing wall extending from a bottom wall to a top wall and having a high compressive strength suitable for stacking is provided at a corner portion of an outer peripheral wall. The package includes: a bottom wall; an end wall connected to both ends of the bottom wall; and a side wall connected to both sides of the bottom wall. On both sides of the end wall, a rim wall is attached to the inner side surface of the side wall, and a reinforcing wall is connected to the edge wall. The reinforcing wall is provided with an inner wall attached to the inner side surface of the end wall.

In the packaging, an adhesive such as an adhesive (hot melt) or a vinyl acetate emulsion containing a hot melt resin is used for assembly, and two or more types of walls are required to be bonded together, so that assembly workability is poor. Specifically, the end wall and the side wall are bent with respect to the bottom wall, and the edge wall is bent on the inner side surface of the side wall with respect to the end wall. The reinforcing wall and the inner wall are bent with respect to the edge wall, and the inner wall is disposed on the inner side surface of the end wall. Since it is necessary to adhere the side wall to the edge wall while maintaining the bent state, and bonding the inner wall to the end wall, the workability is poor.

Therefore, the manufacturer of the product is eager to improve the assembly workability while maintaining the withstand voltage. It is also considered that the box factory will carry out complicated assembly work, and the assembled state of the box will be delivered to the manufacturer. However, in this case, the number of boxes that can be transported to the manufacturer by the box factory is reduced. Moreover, the manufacturer needs a relatively large storage space in order to store unused packaging boxes, which results in high cost.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] U.S. Patent No. 4,871,067

An object of the present invention is to improve the assembly workability of a package including a reinforcing wall for improving the pressure resistance. Further, an object of the present invention is to provide a box making apparatus for automatically assembling a package including a reinforcing wall.

In order to solve the above problems, a package according to the present invention includes: a bottom wall; an end wall erected on a first edge of the bottom wall; and a side wall erected adjacent to the end wall and extending across the first edge a second edge of the bottom wall of the direction; the edge wall is connected to the side edge of the end wall via the outer wall bending line, and is fixed to the inner side surface of the adjacent side wall; and the folded wall is disposed on the edge wall The inner side surface; the inner wall disposed on the inner side surface of the end wall; and the reinforcing wall continuous with the return wall via the first bending line, and continuous with the inner wall via the second bending line, and the backing The wall and the inner wall are protruded inwardly, and the first or second bending line on the side of the outer wall bending line of the first and second bending lines is separated from the outer wall bending line by the protruding top. Configured at intervals.

In the package, since the reinforcing wall is protruded inward from the end wall side or the side wall side at the corner portions of the end wall and the side wall, the pressure resistance in the assembled state can be surely improved. Further, since the first or second bending line is displaced from the outer wall bending line, the folding wall, the reinforcing wall, and the inner wall can be flatly overlapped with the end wall in a state before the edge wall is bonded to the side wall. The state of the edge wall. Since it is carried and stored in this state, there is no need to occupy a large space. Moreover, during assembly, the end walls and side walls are bent relative to the bottom wall and the edge walls are bent relative to the end walls. Moreover, it can be assembled only by arranging and fixing the edge wall to the inner side surface of the side wall. In other words, it is not necessary to fix two or more portions while maintaining the bent state of each wall, so that assembly workability can be improved.

The inner wall is fixed to the end wall, and the first bending line which is closer to the bending line side of the outer wall than the protruding top is disposed at an interval from the outer wall bending line, and the reinforcing wall is extended from the end wall The side protrudes inward. Since the reinforcing wall system protrudes in a triangular shape in a plan view, it can be set to a high withstand voltage as compared with the case where the reinforcing layer is reinforced. When the reinforcing wall protrudes from the side wall side, the side wall side has a two-layer structure in which the edge wall overlaps the inner surface side, and the reinforcing wall protrudes from the inner surface side of the edge wall. The end wall side has a two-layer structure in which the inner wall overlaps the inner surface side. Therefore, the withstand strength of the side wall side can be improved. On the other hand, when the reinforcing wall protrudes from the end wall side, the side wall side has a three-layer structure in which the edge wall and the folded-back wall overlap the inner surface side. Regarding the end wall side, the reinforcing wall protrudes from the inner surface side of the end wall of the single layer. Therefore, the entire side wall and the end wall can be reinforced without bias.

Preferably, a third bending line extending in parallel with the first and second bending lines of the reinforcing wall is provided. If so, the reinforcing wall can be made top with the third bending line and surely protrudes from the end wall or the side wall. Further, preferably, the packaging box is a corrugated cardboard sheet made of paper, and the thickened wall of the paper corrugated cardboard sheet is compressed on the reinforcing wall by the third bending line and having a specific width. Made of corrugated flat. If so, the rigidity (toughness) of the corrugated cardboard sheet can be reduced by the corrugated flat portion, so that the reinforcing wall can be surely protruded from the top of the third bending line.

Preferably, the folding wall is fixed to the inner side surface of the edge wall. If so, the reinforcing wall can be surely protruded by the bending of the edge wall. Further, it is preferable that the folding wall, the reinforcing wall, and the inner wall are integrally provided to the edge wall. In this case, the number of parts constituting the blank of the package can be reduced, so that the cost can be reduced.

The blank of the package includes: a bottom wall; an end wall connected to an edge of the bottom wall; a side wall connected to a side edge of the bottom wall; and a rim wall connected to a side edge of the end wall; a folding wall connected to a side edge of the edge wall; a reinforcing wall connected to a side edge of the folding wall; and an inner wall connected to a side edge of the reinforcing wall. Moreover, the assembly is performed by bending the above-mentioned folded wall with respect to the edge wall and will be combined with the above-mentioned folded wall After the continuous inner wall is fixed to the end wall, the edge wall is bent with respect to the end wall, and the first and second bending lines on both sides of the reinforcing wall are bent to cause the reinforcing wall to protrude inward Then, after the end wall is bent with respect to the bottom wall, the side edge is bent with respect to the bottom wall, and the edge wall is fixed to the side wall.

The package assembled in such a manner is not limited to the method of delivering the folded wall to the manufacturer in a state where the folded wall is bent with respect to the edge wall and the inner wall is fixed to the end wall, and the manufacturer can also use the box. The device is assembled automatically. If so, the box factory can directly deliver the blank after punching the package, thereby further reducing the manufacturing cost.

The box making device for automatically boxing includes: a first coating portion that applies an adhesive to a portion of the inner wall or the inner wall of the end wall that overlaps; and a fixing portion that makes the folding wall face relative to The edge wall is bent, and the inner wall continuous with the return wall is fixed to the end wall; and the second coating portion applies an adhesive to a portion of the edge wall or the edge wall of the side wall And a molding portion that bends the edge wall with respect to the end wall, bends the first and second bending lines on both sides of the reinforcing wall, and causes the reinforcing wall to protrude inward, and then the end wall After being bent with respect to the bottom wall, the side wall is bent with respect to the bottom wall, and the edge wall is fixed to the side wall.

As described above, the reinforcing wall that protrudes inward in the assembled state may be fixed so as to be folded flat on the end wall or the edge wall. Therefore, since the box forming apparatus does not require complicated bending processing, the configuration can be simplified.

The molding portion has a molding plate disposed in the vicinity of the first bending line, and when the edge wall is bent with respect to the end wall, the reinforcing wall is along the first bending line and opposite to the above Guide the way by folding back the wall and bending it. In this case, the reinforcing wall can be surely bent along the first bending line with respect to the folding wall, and the first bending line is located at a position spaced apart from the outer wall bending line between the end wall and the edge wall.

More specifically, the molded portion includes an upper mold that is slidably disposed from the side of the return wall toward the reinforcing wall side, and a lower mold that is disposed in the upper mold The forward direction is forward and the bending of the edge wall with respect to the end wall is guided. Further, a pressing member that presses the formed plate from the reinforcing wall side toward the folded wall side is provided. In this case, the formed plate can follow the first bending line that moves with the bending of the edge wall with respect to the end wall, so that the bending at different positions can be reliably prevented.

The molding portion has a male mold that presses the bottom wall from above to move the blank of the packaging box downward, and a female mold that is disposed below the lower mold and that uses the blank of the male mold The movement causes the end wall and the side wall to be bent with respect to the bottom wall. If so, the end wall and the side wall can be reliably bent with respect to the bottom wall after the edge wall is bent with respect to the end wall.

The fixing portion has a folding member that bends the folding wall with respect to the edge wall, and a pressing member that presses at least the inner wall to the end wall. In this case, the folding wall, the reinforcing wall, and the inner wall can be superposed on the edge wall and the end wall in a flat manner, and can be bonded (fixed).

The fixing portion further has a positioning member that positions the vicinity of the bending line between the edge wall and the folding wall. Preferably, the positioning member is disengaged when the pressing member presses the folding wall and the inner wall. In this case, when the folding wall is bent by the folding member, the bending line can be surely bent along the outer wall of the edge wall.

The folding member is configured to bend the folding wall with respect to the edge wall by a first folding step of moving the folding member upward from a lower portion of the folding wall, so that the folding wall is opposite to the edge The second folding step is a step of moving the folding member inwardly toward the end wall side to bend the folding wall inwardly with respect to the edge wall; and a third folding step The folding member moves downward so that the folding wall overlaps the edge wall. In this case, the folding wall can be bent to overlap the edge wall by one folding member.

Before the first coating portion, the pre-folding portion is formed by bending the reinforcing wall along a third bending line provided between the first and second bending lines to form a fold. If so, then When the edge portion is bent with respect to the end wall by the molding portion of the subsequent step, the reinforcing wall is surely protruded inward with the third bending line as the top.

Since the package of the present invention includes the reinforcing wall that protrudes inward, the pressure resistance can be surely improved. Regarding the packaging box, since the first or second bending line on both sides of the reinforcing wall deviates from the outer wall bending line between the end wall and the edge wall, the reinforcing wall is flatly overlapped in the state before assembly (bending). In the state of the end wall or the edge wall, it is possible to reduce the occupied space during transportation and storage. At the time of assembly, the end wall, the side wall, and the edge wall are bent, and the side wall and the edge wall can be assembled only by fixing the side wall, so that workability can be improved.

The packaging box can be bent as long as the reinforcing wall is overlapped with the end wall or the edge wall, so that complicated bending processing is not required at the time of assembly. Therefore, the box making device for automatically boxing the package can be assembled by the blank of the punched hole. As a result, since the box factory can directly deliver a flat blank, the manufacturing cost of the package can be further reduced.

1‧‧‧corrugated cardboard sheet

2‧‧‧Table liner

3‧‧‧ liner

4‧‧‧SMIC

10‧‧‧Package box

11‧‧‧ box body

12‧‧‧ bottom wall

13A‧‧‧End wall

13B‧‧‧End wall

14‧‧‧Blinding line

15A‧‧‧ Sidewall

15B‧‧‧ Sidewall

16‧‧‧Bending line

17‧‧‧Design cut line

17a‧‧‧cutting department

17b‧‧‧ Non-cutting department

18‧‧‧Open Operations Department

18a‧‧‧ cut line

18b‧‧‧ cut line

19‧‧‧Corrugated flattening

20‧‧‧

21‧‧‧Bending line (outer wall bending line)

22‧‧‧ Attached to the wall

23‧‧‧Bending line

24‧‧‧Strengthen column formation

24A‧‧‧Strengthen column

25‧‧‧Return wall

26‧‧‧ Strengthening the wall

26a‧‧‧1st wall

26b‧‧‧2nd wall

27‧‧‧ inner wall

28‧‧‧Bending line

28a‧‧‧ cut line

29‧‧‧Bend line (1st bend line)

29a‧‧‧ cut line

30‧‧‧Bend line (2nd bend line)

30a‧‧‧ cut line

31‧‧‧Bend line (3rd bend line)

32‧‧‧Corrugated flattening

33‧‧‧ cover

34‧‧‧ Cover body

35‧‧‧1st Attachment

36‧‧‧2nd Attachment

37A‧‧‧Bend

37B‧‧‧Bend

38‧‧‧Bending line

39a‧‧‧Bend line

39b‧‧‧Bend line

39c‧‧‧Bend line

39d‧‧‧Bend line

40‧‧‧ Non-formation department

41‧‧‧Bend line

42‧‧‧Corrugated flattening

43‧‧‧1st fastening

44‧‧‧2nd fixing

45‧‧‧3rd Fasting

46‧‧‧Continuous wall

47‧‧‧Bending line

48‧‧‧ recess

49‧‧‧Bending line

50‧‧‧Bend line

51‧‧‧ overlapping walls

52A‧‧‧Outer Board

52B‧‧‧Outer Board

53A‧‧‧Upper Board

53B‧‧‧Upper Board

54‧‧‧Bending line

55A‧‧‧Inside Board

55B‧‧‧Inside Board

56‧‧‧Bending line

57‧‧‧ cut line

58‧‧‧Clocks

59‧‧‧Clock hole

60‧‧‧Insert card

61‧‧‧Clock protrusion

62‧‧‧Insert card

100‧‧‧With box machine

101‧‧‧Box making device

102‧‧‧ containment device

103‧‧‧Packing device

104‧‧‧Paper Supply Department

105‧‧‧Replenishment

106‧‧‧Pre-folding

107‧‧‧1st coating department

108‧‧‧Fixed parts

109‧‧‧Transition Department

110‧‧‧2nd Coating Department

111‧‧‧Forming Department

112‧‧‧Conveyor

113‧‧‧Transition Department

114‧‧‧Conveyor

115‧‧‧Packing Department

116‧‧‧Conveyor

117‧‧‧Conveyor

118‧‧‧ temporary configuration box

119‧‧‧Conveyor

120‧‧‧Paper Supply Department

121‧‧‧Recruitment

122‧‧‧ Coating Department

123‧‧‧Department Department

124‧‧‧Shell

125‧‧‧1st interval

126‧‧‧2nd interval

127‧‧‧3rd interval

128‧‧‧4th interval

129‧‧‧5th interval

130‧‧‧Conveyor

131‧‧‧ Lifts

132‧‧‧ pedestal

133‧‧‧rail

134‧‧‧Removing components

135‧‧‧ attracting components

136‧‧ ‧ cylinder

137‧‧‧Extrusion Department

138‧‧‧ Slider

139‧‧‧Send out

140‧‧‧feed rolls

141‧‧‧rail

142‧‧‧rails

143‧‧‧Departure

144‧‧‧Support track

145‧‧‧ gears

146‧‧‧ Gears

147‧‧‧Chain

148‧‧‧Transfer components

149‧‧‧ tablet

150‧‧‧ cylinder

151‧‧‧Folding members

152‧‧‧ cylinder

153‧‧‧Chamfering

154‧‧‧ Coating device

155‧‧‧ Positioning members

156‧‧‧Connecting Department

157‧‧‧arm

158‧‧‧ frame

159‧‧ ‧ cylinder

160‧‧‧ cylinder

161‧‧‧Folding components

162‧‧‧Chamfering

163‧‧‧Linking components

164‧‧‧ Space

165‧‧‧ Drive Department

166‧‧‧ Pressing members

167‧‧‧Substrate

168‧‧‧ Pressing Department

169‧‧‧ Drive Department

170‧‧‧ Lifts

171‧‧‧Placement Department

172‧‧‧Guideboard

173‧‧‧rail

174‧‧‧Extrusion Department

175‧‧‧ Slider

176‧‧‧ Coating device

177‧‧‧1st bend

178‧‧‧

179‧‧‧Guideboard

180‧‧‧ Flat section

181‧‧‧Bend

182‧‧‧Departure

183‧‧‧上模

184‧‧ ‧ cylinder

185‧‧‧ frame

186‧‧‧Installation shaft

187‧‧‧Formed board

188‧‧‧ openings

189A‧‧‧Department

189B‧‧‧Stop Department

190‧‧‧ Pressure members

191‧‧‧2nd bend

192‧‧ ‧ negative model

193‧‧‧1st part

194‧‧‧1st inclined part

195‧‧‧1st Maintenance Department

196‧‧‧2nd Mould

197‧‧‧2nd inclined part

198‧‧‧2nd Maintenance Department

199‧‧‧ positive mode

200‧‧‧Indentation Department

201‧‧‧ Drive Department

202‧‧‧Bottom support

203‧‧ ‧ cylinder

204‧‧‧Attraction components

205‧‧‧Guidance Department

206‧‧‧Retaining components

207‧‧ ‧ cylinder

H1‧‧‧ Height

H2‧‧‧ Height

L1‧‧‧ interval

L2‧‧‧ interval

L3‧‧‧ interval

T‧‧‧ prominent top

X‧‧‧ direction

Y‧‧‧ direction

Fig. 1 is a perspective view showing a packaging box according to a first embodiment of the present invention.

Figure 2 is a plan view showing the blank of the box body.

Fig. 3 is a plan view showing a blank of a lid body.

Figure 4A is a cross-sectional view of a corrugated cardboard sheet.

Figure 4B is a cross-sectional view of a corrugated cardboard sheet provided with a universal score.

Figure 4C is a cross-sectional view of a corrugated cardboard sheet provided with opposite lines.

Figure 4D is a cross-sectional view of a corrugated cardboard sheet provided with cut lines.

Figure 4E is a cross-sectional view of a corrugated cardboard sheet provided with corrugated flattened portions.

Fig. 5 is a perspective view showing the case body before assembly.

Fig. 6A is a cross-sectional view showing a reinforcing wall of the tank body before assembly.

Fig. 6B is a cross-sectional view showing the reinforcing wall of the box body in an assembled state.

Fig. 7A is a view showing a reinforcing wall of a box body before assembly of the packaging box according to the second embodiment; Cutaway view.

Fig. 7B is a cross-sectional view showing a reinforcing wall of the box body in an assembled state of the packaging box according to the second embodiment.

Fig. 8A is a cross-sectional view showing a reinforcing wall of the tank body before assembly of the packaging box according to the third embodiment.

Fig. 8B is a cross-sectional view showing a reinforcing wall of the box body in an assembled state of the packaging box according to the third embodiment.

Fig. 9A is a cross-sectional view showing a reinforcing wall of the box body before assembly of the packaging box according to the fourth embodiment.

Fig. 9B is a cross-sectional view showing a reinforcing wall of the box body in an assembled state of the packaging box according to the fourth embodiment.

Fig. 10A is a cross-sectional view showing a reinforcing wall of the tank body before assembly of the packaging box according to the fifth embodiment.

Fig. 10B is a cross-sectional view showing a reinforcing wall of the box body in an assembled state of the packaging box according to the fifth embodiment.

Fig. 11A is a cross-sectional view showing a reinforcing wall of the box body before assembly of the packaging box according to the sixth embodiment.

Fig. 11B is a cross-sectional view showing a reinforcing wall of the box body in an assembled state of the packaging box according to the sixth embodiment.

Fig. 12 is a perspective view showing the case body of the package of the seventh embodiment.

Fig. 13 is a perspective view showing the case body of the package of the eighth embodiment.

Fig. 14 is a plan view showing a blank of a box body of a package according to a ninth embodiment.

Fig. 15A is a plan view showing a blank of a box body of a package according to a tenth embodiment.

Fig. 15B is a plan view showing a blank of a reinforcing post forming portion of a package according to a tenth embodiment.

Fig. 16 is a plan view showing a blank of a package according to the eleventh embodiment.

Fig. 17A is a perspective view showing the case body of the package of the twelfth embodiment.

Fig. 17B is a plan view showing a blank of the tank main body of the twelfth embodiment.

Fig. 18 is a plan view showing a blank of a box body of a package according to a thirteenth embodiment.

Fig. 19 is a schematic view showing a set-up caser using the box-making apparatus of the present invention.

Figure 20 is a plan view showing the box making apparatus.

Fig. 21 is a side view showing the paper feeding portion and the pre-folding portion.

Fig. 22 is a side view showing the pre-folded portion and the fixed portion.

Fig. 23A is a perspective view showing the configuration of a pre-folded portion.

Fig. 23B is a perspective view showing a first operational state of the pre-folded portion.

Fig. 23C is a perspective view showing a second operational state of the pre-folded portion.

Fig. 24A is a perspective view showing the configuration of a fixing portion.

Fig. 24B is a perspective view showing a first operational state of the fixed portion.

Fig. 24C is a perspective view showing a second operational state of the fixed portion.

Fig. 24D is a perspective view showing a third operational state of the fixed portion.

Fig. 24E is a perspective view showing a fourth operational state of the fixed portion.

Fig. 24F is a perspective view showing a fifth operational state of the fixed portion.

Fig. 24G is a perspective view showing a sixth operational state of the fixed portion.

Fig. 25 is a front view showing the conversion portion and the molding portion.

Fig. 26 is a side view showing the molded portion.

Fig. 27A is a front view showing a first bent portion of the molded portion.

Fig. 27B is a front view showing a first operational state of the first bent portion.

Fig. 27C is a front view showing a second operational state of the first bent portion.

Fig. 28A is an enlarged view showing a first operational state of the first bent portion.

Fig. 28B is an enlarged view showing a second operational state of the first bent portion.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the term indicating a specific direction or position (for example, the terms "upper", "lower", "side", "end", "top", "bottom") is used as needed, but The use of the terms is to make the invention made with reference to the drawings easy to understand, and the technical scope of the present invention is not limited to the meaning of the terms.

(First embodiment)

Fig. 1 shows a package 10 according to a first embodiment of the present invention. The package 10 includes a case body 11 and a cover 33 for closing the upper end of the case body 11. Both sides of the respective end walls 13A, 13B of the box body 11 include reinforcing walls 26 extending in the height (longitudinal) direction. In the present embodiment, the reinforcing walls 26 are in a flat overlapping state in an unused state, and protrude inward in a state of being assembled by bending. Moreover, at the time of assembly, the portion to be bonded (fixed) by the adhesive is reduced, and assembly workability is improved.

The box body 11 and the lid body 33 are formed by punching the paper corrugated cardboard sheet 1 into a billet of each of the sheets shown in FIGS. 2 and 3 by a well-known paper container punching device. And the specific part is bent and fitted. As shown in FIG. 4A, in the corrugated cardboard sheet 1, a corrugated core 4 is included between the watch pad 2 and the inner pad 3. In Fig. 4A in which the core 4 is wavy, the cut surface shown is referred to as a corrugated lattice, and in Fig. 4A in which the core 4 extends, a direction perpendicular to the plane of the paper is referred to as a corrugated direction.

A dot chain line shown in Fig. 2 and Fig. 3 is a general scribe line formed by drawing a line from the inner liner 3 side as shown in Fig. 4B by compressing the thick wall of the corrugated cardboard sheet 1. The thin line is an opposite scribe line formed by drawing a line from the side of the watch pad 2 in such a manner as to compress the thick wall of the corrugated cardboard sheet 1 as shown in Fig. 4C. The thick solid line in the blank is a cut line formed by cutting the inner liner 3 from the front liner 2 as shown in Fig. 4D. The light ink portion is as shown in FIG. 4E, and the corrugated cardboard sheet 1 is compressed from both sides of the backing liner 2 and the inner liner 3 to flatten the core 4, and the corrugated cardboard sheet 1 is thinned and the corrugated sheet is flattened. region.

As shown in FIG. 2, the center of the blank of the box body 11 includes a rectangular bottom wall 12. to The short sides of the bottom wall 12 are connected to the end walls 13A, 13B, and the side walls 15A, 15B are connected to the long sides of the bottom wall 12 extending in the direction orthogonal to the short sides. Specifically, in FIG. 2 of the bottom wall 12, the end edges (first edge) which are opposed to each other are connected, and a pair of end walls 13A and 13B are connected via a bending line 14 including a general scribe line. In Fig. 2 of the bottom wall 12, the side edges (second edges) which are opposite to each other are provided, and a pair of side walls 15A, 15B are connected via a bending line 16 including a general scribe line. The blank of the tank body 11 is punched so as to be in the corrugated direction in the X direction of the end walls 13A, 13B at both ends. Thereby, in the assembled state of the tank body 11, the extending directions of the end walls 13A, 13B and the reinforcing walls 26 are in the corrugated direction, and the pressure resistance is improved.

The end walls 13A and 13B are formed in a rectangular shape in which the upper and lower sides in the height direction in Fig. 2 are long sides, and are erected from the end edge of the bottom wall 12 in the assembled state. The side walls 15A and 15B are rectangular in the upper and lower directions in FIG. 2, that is, in the width (horizontal) direction, and are erected from the side edges of the bottom wall 12 in the assembled state. In the present embodiment, the height H2 of the side walls 15A, 15B is set lower than the height H1 of the end walls 13A, 13B.

The design cut line 17 having the cut portion 17a and the non-cut portion (continuous portion) 17b which are alternately arranged is provided on the side wall 15A so as to extend in the width direction in the assembled state. The upper side (the left side in FIG. 2) of the side wall 15A is partially separated by breaking the non-cutting portion 17b of the design cutting line 17. At the center of the upper end of the side wall 15B, a pair of cutting lines 18a and 18a extending in parallel at a predetermined interval and a bending line 18b including a general scribe line connecting the ends of the cutting lines 18a and 18a are formed. The cutting operation portions 18 for gripping the edge of the lid body 33 in the assembled state are formed by the cutting lines 18a and 18a and the bending line 18b. In the side wall 15B, in the upper side region (the right side region indicated by the pale ink color in Fig. 2) in the assembled state, the corrugated crushing portion 19 in which the core 4 has been flattened is provided. The corrugated flat portion 19 is closer to the front end side of the side wall 15B than the bending line 18b of the open operation portion 18.

The edge walls 20 are respectively connected to the side edges of the end walls 13A, 13B via bending lines (outer wall bending lines) 21 including general scribe lines. The side edge 20 is attached to the inner side surface of the adjacent side walls 15A, 15B in the assembled state. The edge wall 20 is a rectangle in which the side in the height direction is a long side The shape is extended from the lower end (the side of the bottom wall 12) of the end walls 13A, 13B to the upper end (front end side). At the edge of the front end side of the end walls 13A, 13B, the attachment wall 22 for attaching the lid 33 is connected via a bending line 23 including a general scribe line.

On the side edge of the edge wall 20, a reinforcing post forming portion 24 is integrally provided to form a reinforcing post 24A extending from the bottom wall 12 to the attaching wall 22 in the height direction in an assembled state. The reinforcing column forming portion 24 includes a folding wall 25 connected to the edge wall 20, a reinforcing wall 26 connected to the folding wall 25, and an inner wall 27 connected to the reinforcing wall 26.

The fold-back wall 25 has a rectangular shape and a width narrower than the width of the rim wall 20. The reinforcing wall 26 has a rectangular shape, and the width of the auxiliary wall 26 and the folding wall 25 is wider than the width of the edge wall 20. The inner wall 27 has a rectangular shape, and the width of the folded-back wall 25 and the reinforcing wall 26 is narrower than the width of the width of the edge wall 20 and the width of one of the end walls 13A, 13B.

Between the edge wall 20 and the fold-back wall 25, a bending line 28 for improving the bendability is provided. The first and second bending lines 29 and 30 are provided on both sides of the auxiliary wall 26. Specifically, a bending line (first bending line) 29 for guiding the bending of the reinforcing wall 26 inward is provided between the folding wall 25 and the reinforcing wall 26. A bending line (second bending line) 30 for guiding the bending of the reinforcing wall 26 inward is provided between the reinforcing wall 26 and the inner wall 27.

The bending line 28 includes leads that are provided with a plurality of cutting lines 28a at a specific interval on the general scribe line. The bending line 29 includes leads which are provided with a plurality of cutting lines 29a at specific intervals on opposite stripes. Similarly, the bending line 30 includes leads which are provided with a plurality of cutting lines 30a at specific intervals on opposite stripes. Among them, the bending line 28 is formed such that a part of one or more of the total length becomes the cutting line 28a. The bending line 29 is formed such that a portion that is less than one-half of the total length becomes the cutting line 29a. Specifically, the length of the cutting line 29a of the bending line 29 is longer than the cutting line 28a of the bending line 28, but the total length (total cutting length) of all the cutting lines 29a is shorter than the total length of the cutting line 28a. . The length of the cutting line 30a of the bending line 30 is shorter than the cutting line 29a of the bending line 29, and the total length of all the cutting lines 30a is also shorter than the total length of the cutting line 29a.

As shown in FIGS. 5 and 6A, the reinforcing post forming portion 24 defined by the bending lines 28 to 30 is folded back so that the folding wall 25 overlaps the inner surface side of the edge wall 20 along the bending line 28 at the time of assembly. Further, the folded-back wall 25 is bonded (fixed) to the edge wall 20 by an adhesive. Thereby, the inner wall 27 is disposed so as to overlap the inner side surfaces of the end walls 13A, 13B, and is bonded to the end walls 13A, 13B by an adhesive. The reinforcing wall 26 does not conform to any of the end walls 13A, 13B and the edge wall 20 so as to be freely deformable. In a state where the edge wall 20 is flatly spread on the end walls 13A, 13B, the reinforcing wall 26 is flatly overlapped with the end walls 13A, 13B.

In this state, the bending line 29 between the folded-back wall 25 and the reinforcing wall 26 is located on the rim wall 20. A bend line 30 between the reinforcing wall 26 and the inner wall 27 is located on the end walls 13A, 13B. Further, when the bending line 30 is used as a reference point, the bending line 21 at the end of the end walls 13A, 13B is located at a position separated by the interval L1. The bending line 29 is located at a position spaced apart from the bending line 30 by an interval L2. Regarding the intervals L1 and L2, the interval L2 is long. That is, the bending line 29 is deviated from the bending line 21 by the interval L3.

As shown in FIGS. 1 and 6B, in the case of the reinforcing wall 26, since the bending line 29 is offset with respect to the bending line 21 by the interval L3, when the edge wall 20 is made along the bending line 21 and with respect to the end walls 13A, 13B At the time of bending, the following bending line 31 is used as the protruding top portion T to protrude inward. Further, even in the assembled state, the bending line 29 on the side of the bending line 21 of the bending lines 29, 30 on both sides of the reinforcing wall 26 is disposed at an interval L3 with respect to the bending line 21.

As shown in Fig. 2, in the present embodiment, a bending line including a general scribe line extending in parallel with the same is provided between the bending lines 29 and 30 at the center in the width (Y) direction of the reinforcing wall 26 (third). Bending line) 31. The reinforcing wall 26 is divided into a first wall portion 26a on the side of the folding wall 25 and a second wall portion 26b on the side of the inner wall 27 by the bending line 31. In each of the reinforcing walls 26, in the middle portion including the bending line 31 and the specific width indicated by the light ink, the thick wall of the corrugated cardboard sheet 1 is compressed to crush the corrugated core 4 in a manner extending in the height direction. The flattened portion 32. Thereby, in the assembled state, the rigidity (toughness) of the corrugated cardboard sheet 1 in the region of the reinforcing wall 26 where the corrugated flattened portion 32 is provided becomes low, so that the formed portion of the bent line 31 is The top portion is protruded from the end walls 13A, 13B in a triangular shape in plan view.

As shown in FIG. 3, the cover 33 includes a rectangular sheet and is covered and fitted across the side walls 15A, 15B on both sides of the assembled box body 11. The lid body 33 includes a lid body 34 positioned in the middle of the left-right direction in FIG. 3, a first attaching portion 35 bonded to the side wall 15A side, and a second attaching portion 36 attached to the side wall 15B side. The lid body 33 is punched so as to be in a corrugated direction with respect to a direction orthogonal to the direction in which the attachment portions 35 and 36 on both sides are orthogonal. Thereby, the workability at the time of peeling the edge of the attachment parts 35 and 36 in an assembled state is improved.

When the cover body 34 is assembled (packaged) by the manufacturer, the cover body 22 is attached to the attachment wall 22 of the case body 11 by an adhesive. The width of the cover body 34 in the up-and-down direction in FIG. 3 is formed to be the same as the size between the end walls 13A, 13B in the assembled state. The first attaching portion 35 is attached to the front end side of the design cutting line 17 on the outer surface of the side wall 15A. The first attaching portion 35 is formed in a size that can cover the cut line 17 of the side wall 15A in an assembled state. The front end portion of the second attaching portion 36 is bonded to the outer side surface of the side wall 15B, and both end portions are bonded to the edge wall 20. The second attaching portion 36 is formed in a size that overlaps the corrugated flat portion 19 of the side wall 15B in an assembled state.

Between the cover body 34 and the first attachment portion 35 and between the cover body 34 and the second attachment portion 36, in order to increase the curvature of the space portion of the case body 11 (between the end walls 13A and 13B in the assembled state) The bends 37A and 37B which impart flexibility are formed. The bent portions 37A, 37B include a pair of bending lines 38 including a common scribe line formed at the same interval as the size between the side walls 15A, 15B, and bending lines 39a - 39d, and the like, and the respective bending lines 38 They are arranged in parallel at specific intervals. The non-formation portion 40 is provided on each of the bending lines 39a to 39d so as to have a substantially rhombic shape as a whole. On the side of the non-formed portion 40 of the bending lines 39a to 39d, a bending line 41 is provided across each end portion. Inside the periphery surrounded by the bending line 38, the bending line 39d, and the bending line 41, a corrugated flat portion 42 that compresses the thick wall of the corrugated cardboard sheet 1 to crush the core 4 is provided. The corrugated flat portion 42 can be deformed along the outer shape of the box body 11.

In the box making factory, the box body 11 and the lid body 33 are punched as shown in Figs. 2 and 3, respectively. and Further, as shown in FIG. 5, the box body 11 is bent such that the folding wall 25 is bent with respect to the edge wall 20, and the reinforcing column forming portion 24 is superposed on the edge wall 20 and the end walls 13A, 13B. Further, the folding wall 25 is bonded to the edge wall 20 (see the first fixing portion 43 of FIG. 6A), and the inner wall 27 is bonded to the end wall 13A, 13B (see the second fixing portion 44 of FIG. 6A). . Thereby, the reinforcing wall 26 of the reinforcing column forming portion 24 is superposed on the flat state of the end walls 13A, 13B. The package 10 is delivered directly to the manufacturing facility that manufactures the particular product in this unfolded state.

Thus, in the package 10 of the present invention, the box body 11 and the lid body 33 can be delivered in a flat sheet state. Therefore, when the container 10 is transported to the manufacturing facility and the unused packaging box 10 is stored by the manufacturer, a large space is not required, so that the cost can be reduced. Since the reinforcing column forming portion 24 is integrally provided to the edge wall 20, the number of components constituting the blank of the packaging box 10 can be reduced, in addition to the simple operation, and therefore, the cost can be reduced even in this respect.

When the package 10 is assembled by the manufacturer and the article is packaged, for example, as shown in FIG. 6A, after the end walls 13A, 13B are bent relative to the bottom wall 12, as shown in FIG. 6B, the edge wall 20 is made opposite to the edge wall 20 The end walls 13A, 13B are bent. Moreover, the side walls 15A and 15B are bent with respect to the bottom wall 12, and the side walls 15A and 15B are superposed on the outer side surface of the edge wall 20. Further, the side walls 15A and 15B are bonded to each other by the adhesive (the third fastening portion 45) to the edge wall 20. The method of assembling the tank body 11 is not limited to the above method, and may be changed as desired. In short, the end walls 13A, 13B and the side walls 15A, 15B are bent with respect to the bottom wall 12, the edge wall 20 is bent with respect to the end walls 13A, 13B, and the edge wall 20 is attached to the side walls 15A, 15B. The inner sides of both ends can be used.

As described above, the box body 11 of the present invention terminates the assembly work by bonding only the side walls 15A and 15B to the edge walls 20 and 20. In other words, since it is not necessary to bond two or more types of portions while maintaining the bent state, assembly workability can be improved.

As shown in Fig. 6A, in a state before the edge wall 20 is bent relative to the end walls 13A, 13B, the bending line 29 of the reinforcing wall 26 is spaced apart from the bending line 21 between the end walls 13A, 13B and the edge wall 20. L3 deviates. Therefore, as shown in FIG. 6B, when the edge wall 20 is made opposite to the end wall When the 13A and 13B are bent inward, the reinforcing walls 26 between the bending lines 29 and 30 are compressed according to the difference in the lateral dimension of the end walls 13A, 13B due to the difference in the total length (intervals L1, L2). As a result, the end walls 13A and 13B project inward in a triangular shape in plan view. In the present embodiment, the bending lines 29 and 30 are formed of leads which are based on the opposite scribe lines, and the bending line 31 and the corrugated flat portion 32 are provided in the middle of the reinforcing wall 26, so that the bending lines 29 and 30 can be easily and surely provided. Prominent in a triangular column.

When the box body 11 is assembled in this manner, the product is housed inside the box body 11 in the same manner as before. Thereafter, as shown in FIG. 1 , the lid body 33 is disposed on the upper portion of the box body 11 , and the lid body 33 is attached to the attachment wall 22 , the side walls 15A , 15B , and the specific edge wall 20 of the box body 11 . And closed (closed).

The package 10 includes reinforcing walls 26 that extend from the bottom wall 12 to the attachment wall 22 on either side of the end walls 13A, 13B. Therefore, the withstand voltage in the up and down direction can be surely improved. In particular, in the present embodiment, the reinforcing walls 26 are protruded from the end walls 13A and 13B, so that the entire end walls 13A and 13B and the side walls 15A and 15B can be reinforced without being biased. In detail, since the reinforcing wall 26 protrudes in a triangular shape in a plan view, it can be set to a high withstand voltage when compared with the case where it is reinforced by the laminated layer. Further, in the present embodiment, the end walls 13A and 13B are configured such that the reinforcing walls 26 protrude from the end walls 13A and 13B of the single layer, and the side walls 15A and 15B have a three-layer structure in which the edge wall 20 and the folded wall 25 are overlapped. Therefore, the end walls 13A, 13B and the side walls 15A, 15B can be reinforced without bias. Therefore, even if it is stacked at the time of transportation and storage in a sales store, the package 10 is not deformed, and the inside product can be surely protected.

In the sales shop where the product has been received, when the package 10 is unsealed, the opening operation portion 18 is pressed inward, and the front edge of the second attachment portion 36 of the lid body 33 is gripped. Then, the second attaching portion 36 is rolled up and peeled off from the side wall 15B and the edge wall 20. Then, after the lid main body 34 is lifted toward the side wall 15A side and peeled off from the attaching wall 22, the first attaching portion 35 is rotated toward the side surface, for example, and the non-cutting portion 17b of the cut line 17 is designed. fracture.

Thereby, it can be an unsealed state in which the inside product is exposed. In the unsealed state, since the upper portion of the box body 11 is largely opened, the inside product can be easily taken out. Since the side wall 15A, which is the front side of the box body 11, the break edge formed by the design cut line 17 in consideration of the decorative property is exposed, the product can be directly stored in the box body 11 and displayed on the storefront.

(Second embodiment)

7A and 7B show the box body 11 of the package 10 of the second embodiment. In the second embodiment, the continuous wall 46 extending along the end walls 13A and 13B is provided in the reinforcing wall 26, which is different from the first embodiment. In the reinforcing wall 26, the first and second bending lines 29 and 30 are provided on both sides in the same manner as in the first embodiment, and the third bending line 31 is provided at the center. The continuous wall 46 is defined by forming a bend line 47 between the bend lines 29, 31 in such a manner as to be located on the end walls 13A, 13B. The bending line 47 includes a lead wire provided with a cutting line at a predetermined interval on the opposite scribe line. In the box body 11 of the second embodiment, the continuous wall 46 extends along the end walls 13A, 13B in the assembled state. Therefore, the top portion T of the reinforcing wall 26 which protrudes inwardly can be located on the center side in the width direction of the end walls 13A, 13B.

(Third embodiment)

8A and 8B show the box body 11 of the package 10 of the third embodiment. In the third embodiment, the position at which the bending line (third bending line) 31 formed on the reinforcing wall 26 is located on the side of the folded wall 25 on the end walls 13A and 13B is different from that of the first embodiment. In the tank body 11 of the third embodiment, the top portion T of the reinforcing wall 26 can be brought closer to the side walls 15A, 15B, and the inclination angle of the second wall portion 26b of the reinforcing wall 26 extending to the center side of the end walls 13A, 13B can be made. gentle.

(Fourth embodiment)

9A and 9B show the case body 11 of the package 10 of the fourth embodiment. In the fourth embodiment, the bending line 29 formed between the folding wall 25 and the reinforcing wall 26 is located on the side of the bending line 28 formed between the edge wall 20 and the folded wall 25, and the first embodiment. different. Specifically, in comparison with the first embodiment, the interval L3 at which the bending line 29 is displaced from the bending line 21 is large, and the bending line 29 is disposed at the center in the width direction of the edge wall 20. In the tank body 11 of the fourth embodiment, the reinforcing walls 26 projecting from the end walls 13A, 13B can be further brought closer to the side walls 15A, 15B, and the protruding size of the reinforcing walls 26 can be made larger.

(Fifth Embodiment)

10A and 10B show the case body 11 of the package 10 of the fifth embodiment. In the fifth embodiment, the reinforcing walls 26 having a quadrangular shape in plan view are formed in the corner portions from the end walls 13A and 13B to the side walls 15A and 15B, and are different from the first embodiment. In detail, the bending line 31 formed at the center of the reinforcing wall 26 is provided in the vicinity of the bending line 21 formed between the end walls 13A, 13B and the edge wall 20. The bending lines 29, 30 formed on both sides of the reinforcing wall 26 are disposed to be opposed to each other with the bending line 31 as a center. In the case body 11 of the fifth embodiment, since the reinforcing wall 26 protrudes substantially uniformly from both of the end walls 13A and 13B and the side walls 15A and 15B, the rigidity of the reinforcing wall 26 can be further improved.

(Sixth embodiment)

11A and 11B show the box body 11 of the package 10 of the sixth embodiment. In the sixth embodiment, the reinforcing wall 26 having a triangular shape in plan view is provided so as to protrude from the side walls 15A and 15B, and is different from the first embodiment. In detail, the bending line 30 formed between the reinforcing wall 26 and the inner wall 27 is provided so as to be located on the end walls 13A, 13B and in the vicinity of the bending line 21. If the bending line 29 away from the bending line 21 is used as a reference point, the bending line 21 at the end of the edge wall 20 is located at a position separated by the interval L1. The bending line 30 is located at a position spaced apart from the bending line 29 by an interval L2. Regarding the intervals L1 and L2, the interval L2 is long. That is, the bending line 30 is deviated from the bending line 21 by the interval L3.

As described above, in the sixth embodiment, the bending line 30 on the side of the bending line 21 of the protruding line top T in the assembled state in the bending lines 29 and 30 on both sides of the reinforcing wall 26 is offset from the bending line 21 by the interval L3. Therefore, the reinforcing wall 26 protrudes inward from the side of the edge wall 20 at the corner portions of the end walls 13A, 13B and the side walls 15A, 15B. In the sixth embodiment, the reinforcing wall 26 is from the edge wall The side walls 15A and 15B of the two-layer structure superimposed on the inner surface side are protruded, and the side walls 13A and 13B are double-layered structures in which the inner wall 27 is superposed on the inner surface side. Therefore, the withstand voltage strength on the side walls 15A, 15B can be increased.

As in the first to sixth embodiments above, the present invention separates the bending lines 21, 30 formed on the both sides of the reinforcing wall 26 with respect to the bending line 21 between the end walls 13A, 13B and the edge wall 20. The distance L3 is deviated, and it is desirable to change the protruding portion and shape of the reinforcing wall 26. Therefore, in the case of accommodating a product which is required to avoid local compression, the reinforcing wall 26 can be formed in a shape which is difficult to dry and which is difficult to interfere with according to the shape of the product. It is also possible to combine the features of the respective embodiments, such as the configuration in which the continuous wall 46 is provided as in the second embodiment, to form the case body 11.

(Seventh embodiment)

Fig. 12 shows a box body 11 of the package 10 of the seventh embodiment. In the seventh embodiment, the concave portion 48 which is recessed outward is provided at the center of the total height of the reinforcing wall 26, which is different from the first embodiment. Specifically, a bending line 49 extending across the bending lines 29 and 30 is provided at the center of the reinforcing wall 26, and four bending lines 50 extending from both ends of the bending line 49 toward the upper center and the lower center are provided. And a bending line 31 is provided from the intersection of the bending line 50. In this manner, the concave portion 48 may be formed in order to prevent the product from being dried by the reinforcing wall 26 depending on the shape of the product. Of course, the configuration in which the recessed portion 48 is provided can also be applied to the package 10 of the second to sixth embodiments.

(Eighth embodiment)

Fig. 13 shows a box body 11 of the package 10 of the eighth embodiment. In the eighth embodiment, the reinforcing wall 26 is different from the first embodiment in that the reinforcing wall 26 protrudes only from the upper side of the end walls 13A and 13B. Specifically, the reinforcing wall 26 and the inner wall 27 are formed only in the upper half of the front end of the folding wall 25, and the lower half is the overlapping wall 51 which is disposed so as to entirely overlap the inner side surfaces of the end walls 13A, 13B. The reinforcing wall 26 and the inner wall 27 and the overlapping wall 51 are separated (divided) by a cutting line. In the eighth embodiment, the reinforcing wall 26 is formed in the upper half, and The reinforcing wall 26 is formed in the lower half, and the reinforcing wall 26 can also be protruded from the middle portion of the total height. Of course, the features of the second to seventh embodiments can be combined.

(Ninth Embodiment)

Fig. 14 shows a blank of the tank body 11 of the package 10 of the ninth embodiment. In the ninth embodiment, the reinforcing post forming portion 24 including the folded-back wall 25, the reinforcing wall 26, and the inner wall 27 is connected to the end edges of the end walls 13A and 13B, and is different from the first embodiment. In the present embodiment, the inner wall 27 of the reinforcing column forming portions 24, 24 formed at both ends is constituted by one wall that is shared. In the ninth embodiment, the same operations and effects as those of the first embodiment can be obtained. Of course, the features of the second to eighth embodiments can be combined. In the ninth embodiment, it is preferable that the edge wall 20 and the folded wall 25 are fixed by an adhesive or the like, but the end walls 13A and 13B are not necessarily fixed to the inner wall 27.

(Tenth embodiment)

15A and 15B show the blank of the tank main body 11 and the reinforcing post forming portion 24 of the packaging box 10 according to the tenth embodiment. In the tenth embodiment, the case body 11 and the reinforcing column forming portion 24 for forming the reinforcing post 24A are separately formed, which is different from the first embodiment. In the tenth embodiment as described above, the same operations and effects as those of the first embodiment can be obtained. Of course, the features of the second to eighth embodiments can be combined.

(Eleventh embodiment)

Fig. 16 shows a blank of the package 10 of the eleventh embodiment. In the eleventh embodiment, the case body 11 and the lid body 33 are integrally provided as one blank, which is different from the first embodiment. In the eleventh embodiment, the same operations and effects as those of the first embodiment can be obtained. Moreover, since the bills constituting the package 10 are combined into one, the convenience associated with the operation can be improved. Of course, the features of the second to eighth embodiments can be combined.

(Twelfth embodiment)

17A and 17B show the case body 11 of the package 10 of the twelfth embodiment. At the 12th In the embodiment, the side walls 15A and 15B have a double-wall structure having the outer plate portions 52A and 52B and the inner plate portions 55A and 55B, and the side walls are not bonded by the adhesive agent. 15A, 15B and the edge wall 20 are fixed by being locked in by the intrusion.

As shown in Fig. 17B, the outer plate portions 52A, 52B are connected to the both side edges of the bottom wall 12 via the bending line 16. The upper plate portions 53A and 53B are connected to the intermediate portion of the outer edge of the outer plate portions 52A and 52B via the bending line 54 including the lead wires. The inner plate portions 55A and 55B are connected to the outer edge of the upper plate portions 53A and 53B via a bending line 56 including a lead wire. Cut lines 57 are provided at both ends in the longitudinal direction of the upper plate portions 53A and 53B, and the outer plate portions 52A and 52B and the inner plate portions 55A and 55B are divided by the cutting lines 57. A pair of locking projections 58 and 58 are provided at the outer ends of the inner plate portions 55A and 55B, and locking holes 59 and 59 are provided in the bottom wall 12 at positions corresponding to each other in the assembled state.

An insertion locking portion 60 that is inserted between the plate portions 52A and 52B and the inner plate portions 55A and 55B disposed outside the side walls 15A and 15B is protruded from the lower portion of the edge wall 20. In the present embodiment, the return wall 25 is connected to the upper side of the insertion locking portion 60, and the reinforcing wall 26 and the inner wall 27 similar to those of the first embodiment are connected to the outer edge of the folding wall 25.

In the same manner as the first embodiment, the folding wall 25 is bonded to the edge wall 20 and the inner wall 27 is bonded to the end walls 13A and 13B in the unfolded state, and is delivered to the manufacturer. Moreover, when assembled by the manufacturer, after the end walls 13A, 13B are bent relative to the bottom wall 12, the edge wall 20 is bent relative to the end walls 13A, 13B. After that, as shown in FIG. 17A, after the outer plate portions 52A and 52B are bent with respect to the bottom wall 12, the upper plate portions 53A and 53B and the inner plate portion 55A are caused to be wound by the insertion locking portion 60. The 55B is bent, and the locking projection 58 is inserted into the locking hole portion 59.

As described above, in the box body 11 of the twelfth embodiment, the box body 11 can be assembled without being attached to the manufacturer. Therefore, the assembly workability of the manufacturing plant can be greatly improved. Further, since the reinforcing wall 26 that protrudes inward is included by the assembly, the same operations and effects as those of the first embodiment can be obtained. Of course, the second to eleventh embodiments can also be used. The characteristics are combined to form.

(Thirteenth embodiment)

Fig. 18 shows a blank of the tank body 11 of the package 10 of the thirteenth embodiment. In the thirteenth embodiment, the reinforcing post forming portion 24 is connected to the end edges of the end walls 13A and 13B, similarly to the first embodiment, in the same manner as the ninth embodiment of FIG. In the twelfth embodiment of 17B, the side walls 15A and 15B have a double wall structure.

The outer plate portions 52A and 52B, the upper plate portions 53A and 53B, and the inner plate portions 55A and 55B are sequentially connected to both side edges of the bottom wall 12. The side walls 15A and 15B are formed by bending the outer plate portions 52A and 52B with respect to the bottom wall 12, and bending the upper plate portions 53A and 53B with respect to the outer plate portions 52A and 52B. The inner plate portions 55A and 55B are bent with respect to the upper plate portions 53A and 53B.

An insertion locking portion 60 that is inserted between the plate portions 52A and 52B and the inner plate portions 55A and 55B disposed outside the side walls 15A and 15B is protruded from the lower portion of the edge wall 20. A locking protrusion 61 that is inserted into the locking hole portion 59 of the bottom wall 12 is protruded from the insertion locking portion 60.

The pair of reinforcing column forming portions 24 and 24 include a common inner wall 27 as in the ninth embodiment. On both sides of the inner wall 27, a reinforcing wall 26 and a folding wall 25 are sequentially connected. An insertion locking portion 62 that overlaps the inner surface side of the insertion locking portion 60 of the edge wall 20 is protruded from the folding wall 25.

In the thirteenth embodiment, since the continuous inner wall 27 is included in the same manner as the ninth embodiment, the end walls 13A and 13B and the inner wall 27 may not be bonded. Further, since the side walls 15A and 15B have a double-wall structure having the outer plate portions 52A and 52B and the inner plate portions 55A and 55B, the edge wall can be made without performing the bonding work as in the twelfth embodiment. The assembly is fixed to the side walls 15A and 15B. Further, since the insertion locking portion 62 that is inserted into the side walls 15A and 15B is provided in the folding wall 25, the edge wall 20 and the folding wall 25 can be fixed and assembled at a predetermined position.

Therefore, the same actions and effects as those of the first embodiment can be obtained. And because By omitting all the cooperation, it is possible to improve the assembly workability of the manufacturing plant. Moreover, since the carton factory can directly deliver the blank of the package 10, the manufacturing cost can be further reduced. Of course, the folding wall 25 may be attached to the edge wall 20, and the inner wall 27 may be attached to the end walls 13A, 13B.

The package 10 of the present invention is not limited to the configuration of the above embodiment, and various modifications can be made.

For example, in each of the above embodiments, the walls are bonded to each other by an adhesive, but they may be fixed by a known method and structure that can be fixed. In the above embodiment, the package body 10 is constituted by the case body 11 and the lid body 33. However, the lid body 33 may be sealed with a shrink film instead of the lid body 33, or the lid body 33 may not be provided.

In the above embodiment, the end walls 13A, 13B and the side walls 15A, 15B are formed at different total heights, but they may be formed at the same height. In the above embodiment, the edge wall 20 and the fold-back wall 25 are fixed by an adhesive, but they may not be fixed.

In each of the above embodiments, the package 10 is formed in a quadrangular shape in plan view, but a octagonal shape, a plan view shape or a side view shape may be provided between the end walls 13A and 13B and the side walls 15A and 15B with a chamfered wall. The shape of the package 10 can be changed as desired.

Further, in the above embodiment, the corrugated cardboard sheet 1 made of paper is punched to form the package 10, but a corrugated cardboard sheet made of resin may be punched. Further, it is not limited to a corrugated cardboard sheet, and may be formed by a single thick paper or a resin sheet.

In the above embodiment, the configuration in which the reinforcing column forming portion 24 is bonded to the end walls 13A, 13B and the edge wall 20 and delivered to the manufacturer has been described. However, the blanks of the box body 11 and the lid body 33 may be directly Delivered to the manufacturing plant.

Specifically, the reinforcing post forming portion 24 may be bent so as to be superposed on the end walls 13A and 13B and the edge wall 20 in a flat manner and fixed. Thereafter, the edge wall 20 is bent with respect to the end walls 13A and 13B, so that the reinforcing wall 26 protrudes due to the difference in size (intervals L1, L2) between the bending line 21 and the first and second bending lines 29 and 30. Then, after the end walls 13A, 13B are bent with respect to the bottom wall 12, the side walls 15A, 15B are bent with respect to the bottom wall 12. And by the edge 20 is fixed to the side walls 15A, 15B to terminate the assembly of the box body 11. In this way, since the complicated bending process is not required, the box making device 101 can be used for automatic box making.

(Embodiment of the box making device 101)

Next, a box making apparatus 101 for automatically boxing the box body 11 of Fig. 1 will be described. As shown in FIG. 19, the box making apparatus 101 is used for the boxing machine 100, which performs the boxing of the box body 11, the product is housed in the box body 11, and the box body is used by the lid body 33. 11 all the steps of the package.

(with the composition of the box machine 100)

The boxing machine 100 generally includes a box making device 101, a housing device 102, and a sealing device 103. The box-making apparatus 101 includes a paper feeding unit 104, a pre-folding unit 106, a first application unit 107, a fastening unit 108, a conversion unit 109, a second application unit 110, and a molding unit 111. The housing device 102 includes a conversion unit 113 and a boxing unit 115. The sealing device 103 includes a paper feeding portion 120, a coating portion 122, and a sealing portion 123. In the present embodiment, the product accommodated in the package 10 is a standing pouch in which a liquid is accommodated, but the present invention is not limited thereto.

The paper feed unit 104 includes a replenishing portion 105 in which a blank (hereinafter simply referred to as a "box blank") of the box body 11 is disposed. In the paper feeding unit 104, the box blank conveyed from the replenishing unit 105 in a laminated state is taken out one by one and supplied to the pre-folding unit 106. The box blank is conveyed in the conveying direction across the Y direction of the side walls 15A and 15B.

In the pre-folded portion 106, the reinforcing wall 26 is bent along the third bending line 31 provided between the first and second bending lines 29, 30 on the supplied billet, and is formed along the bending line 31. Creases. Thereafter, the box blank is maintained in the same posture, and is conveyed to the fixing portion 108 in the direction in which the X and the end walls 13A and 13B are in the transport direction.

In the first coating unit 107, an adhesive including a hot-melt resin is applied (hot-melted) during the conveyance of the preform from the pre-folding portion 106 toward the fixing portion 108. On the box blank, an adhesive is applied to a portion where the edge wall 20 and the inner walls 27 of the end walls 13A and 13B overlap.

In the fixing portion 108, the folding wall 25 is bent with respect to the edge wall 20 to form a reinforcing column. The portion 24 is entirely overlapped with the edge wall 20 and the end walls 13A, 13B. Thereby, the folding wall 25 and the inner wall 27 are bonded to the edge wall 20 and the end walls 13A and 13B to which the adhesive is applied. Thereafter, the box blank is maintained in the same posture, and is conveyed to the conversion unit 109 in the X direction as the conveyance direction.

In the conversion unit 109, the conveyance direction of the box blank is converted from the X direction to the Y direction in the same posture. Thereby, the box blank is conveyed to the molding part 111 in the Y direction as a conveyance direction.

In the second application unit 110, an adhesive including a hot-melt resin is applied to the transfer from the conversion unit 109 to the blank of the molding unit 111. On the box blank, an adhesive is applied to a portion where the edge walls 20 of the side walls 15A, 15B overlap.

In the molding portion 111, the edge wall 20 is first bent with respect to the end walls 13A and 13B, and the reinforcing wall 26 on the inner surface side is protruded inward. Then, after the end walls 13A, 13B are bent with respect to the bottom wall 12, the side walls 15A, 15B are bent with respect to the bottom wall 12. Thereby, the edge wall 20 is bonded to the side walls 15A and 15B to which the adhesive is applied.

The box body 11 assembled by the box forming apparatus 101 as described above is discharged so that the bottom wall 12 is positioned on the lower side, and is conveyed by the conveyor 112 to the conversion unit 113 of the subsequent storage apparatus 102. The conveyor 112 uses, for example, a roller conveyor in which a plurality of rollers are arranged side by side. The conveyor 112 adopts an L-shaped curved conveying path, but is not limited to this configuration.

In the conversion unit 113, the posture of the box body 11 is changed to the overturned state and transported. Specifically, the tank main body 11 is conveyed by the conveyor 112 in a posture in which the bottom wall 12 is located on the lower side and the openings surrounded by the end walls 13A and 13B and the side walls 15A and 15B are located on the upper side. In the conversion unit 113, the box body 11 on the lift conveyor 112 is placed on the conveyor 114 with the side wall 15A on the upper side and the opening on the side of the box portion 115. The tank body 11 is conveyed to the packing unit 115 by the conveyor 114 in a posture facing the side.

The boxing portion 115 includes two conveyors 116, 117 and a temporary placement box 118. The conveyor 116 conveys the tank main body 11 toward the temporary arrangement box 118 with the opening side as the conveyance direction front side. The conveyor 117 transports the accommodated products in the temporary arrangement box 118. Temporary configuration box The products lifted from the conveyor 117 are arranged in a row by a suction device (not shown). The box body 11 is placed so as to accommodate the temporary placement box 118, and the temporary arrangement box 118 is rotated in this state, whereby only the product is housed in the box body 11.

As described above, the box body 11 in which the product is housed in the storage device 102 is discharged so that the bottom wall 12 is positioned on the lower side, and is conveyed to the subsequent sealing device 103 by the conveyor 119.

The paper feed unit 120 includes a replenishing portion 121 in which a blank (hereinafter simply referred to as a "cover blank") of the lid body 33 is disposed. In the paper feed unit 120, the cover blank conveyed from the replenishing unit 121 in a laminated state is taken out one by one and supplied to the sealing portion 123. The cover blank is conveyed in such a manner that the direction across the bonding portions 35 and 36 is the conveyance direction, and the first attachment portion 35 is positioned on the front side in the conveyance direction.

In the application portion 122, an adhesive including a hot-melt resin is applied to the transfer of the cover sheet from the paper feed portion 120 toward the sealing portion 123. On the cover blank, an adhesive is applied to a portion where the side walls 15A and 15B of the attachment portions 35 and 36 of the lid body 33 overlap.

In the sealing portion 123, the box body 11 in which the product is housed is conveyed by the conveyor 119 with the opening as the upper side. The lid body 33 conveyed from the paper feed unit 120 is disposed on the upper side of the opening of the tank body 11. In the sealing portion 123, the attachment portions 35, 36 of the lid body 33 are bent with respect to the lid body 34. Thereby, the attaching portions 35 and 36 of the lid body 33 to which the adhesive is applied are attached to the side walls 15A and 15B of the tank body 11.

In this manner, the boxing machine 100 can automatically box the punched box blank into the box body 11 and seal the box body 11 by the lid body 33 after the box body 11 receives the product. Therefore, since the box factory can deliver the box blank and the cover blank in a flat state, the manufacturing cost of the package 10 can be further reduced.

(The overall composition of the box making device 101)

Next, a specific configuration of each of the units 104 to 111 of the box manufacturing apparatus 101 of the present embodiment will be described.

As shown in FIG. 20, the box making apparatus 101 includes a casing 124 divided into five. The first and second sections 125 and 126 are adjacent in the Y direction, and the second to fourth sections 126 to 128 are in the X direction. Adjacent to each other, the fourth and fifth intervals 128 and 129 are further adjacent in the Y direction. The paper feed unit 104 including the replenishing unit 105 is disposed in the first section 125, the pre-folding unit 106 is disposed in the second section 126, the fixing unit 108 is disposed in the third section 127, and the conversion unit is disposed in the fourth section 128. 109. The molding portion 111 is disposed in the fifth section 129.

In the box making apparatus 101, the box blank is conveyed while maintaining the same posture. Specifically, the refill portion 105 in the first section 125 is disposed so as to be positioned on the front side (back side) and the rear side (near side side) in the transport direction across the Y direction of the side walls 15A and 15B. The box blank is transported from the first section 125 to the second section 126 in the Y direction so as to maintain the posture. Then, the second section 126 is transported to the fourth section 128 in the X direction of the end walls 13A and 13B in the transport direction. Then, the fourth section 128 to the fifth section 129 are again transported in the Y direction of the side walls 15A and 15B as the transport direction.

(Composition of paper feed unit 104)

As shown in FIGS. 20 and 21, the paper feed unit 104 includes a plurality of conveyors (four in the present embodiment) extending across the both ends of the first section 125 in the Y direction. The side of the conveyor 130 opposite to the second section 126 (near the front) is a refilling unit 105 in which the billet is placed. The second section 126 side of the conveyor 130 is the paper feed section 104. The paper feed unit 104 includes a lifter 131 that pulls the bundle of blanks up to the paper feed position indicated by a chain line in Fig. 21. The elevator 131 includes a pedestal 132 between the conveyors 130 and 130 and on both sides, and is lifted and lowered by a drive mechanism (not shown).

As shown in FIG. 21, in the paper feeding portion 104, a pair of guide rails 133, 133 supporting both sides of the box blank are included above the conveyor 130. The guide rail 133 is a member having an L-shaped cross section extending in the Y direction, and is rotatable in the longitudinal direction. The paper feeding unit 104 includes a take-out member 134 for arranging a single piece of the box blank on the guide rail 133 above the elevator 131. The take-out member 134 includes a suction member 135 that is connected to a suction pump (not shown). The suction member 135 can use the cylinder 136 to move up and down between the paper feed position and the upper side of the guide rail 133.

The paper feed unit 104 includes an extrusion unit 137 and a delivery unit 139 that move the box blank on the guide rail 133 toward the pre-folded portion 106 side. The extrusion portion 137 is disposed on the right side of the guide rail 133 on the right side in Fig. 21 . The extrusion unit 137 includes a slider 138 that can advance and retreat along the guide rail 133 by a drive mechanism (not shown). The delivery portion 139 is disposed on the left side of the guide rail 133 on the left side in FIG. The delivery unit 139 includes a plurality of feed rollers 140 that are rotated by a drive mechanism (not shown).

In the paper feed unit 104, when there is no billet on the elevator 131, the bundle of the stacks placed on the replenishing unit 105 is conveyed by the conveyor 130. Further, the upper end of the bundle of the blanks is raised to the paper feed position by the elevator 131, and the guide rail 133 is rotated to the non-holding position opened outward. Thereafter, a piece of the box blank is sucked by the take-out member 134 and pulled up above the guide rail 133. Then, the guide rail 133 is rotated to the holding position, and the suction by the take-out member 134 is stopped, and the box blank is placed on the guide rail 133. Thereafter, the slider 138 of the extruding portion 137 is advanced, and the box blank on the guide rail 133 is moved toward the pre-folding portion 106. When the front end of the box blank is introduced into the delivery portion 139 by extrusion, the box blank is sent to the pre-folding portion 106 by the feed roller 140.

(Transportation mechanism of the second to fourth sections 126 to 128)

As shown in FIG. 21 and FIG. 22, the second section 126 in which the pre-folding portion 106 is disposed includes a pair of guide rails 141 and 141 that support the supply of the box blank from the first section 125 side. The guide rail 141 is a member having an L-shaped cross section extending in the Y direction, and is rotatable in the longitudinal direction. A pair of guide rails 142, 142 are disposed on the lower portion of the guide rail 141. Referring to Fig. 20, the guide rail 142 extends from the second section 126 to the fourth section 128 in the X direction. In the guide rail 142 located on the left side in Fig. 21, a stopper portion 143 which extends beyond the conveying surface of the guide rail 141 and which faces upward is provided. The stopper portion 143 stops the box blank conveyed by the feed roller 140 to the guide rail 141 on the guide rail 141.

As shown in FIGS. 20 and 22, between the guide rails 142, 142, one of the support surfaces 144, 144 supporting the lower surface of the box blank is disposed. Inside the support rails 144 and 144, a transport unit 145 for moving the billet in the X direction is disposed. The conveyance unit 145 includes gears 146 and 146 disposed at substantially intermediate portions between the end portions of the second section 126 and the fourth section 128, and an endless chain 147 spanned between the gears 146 and 146. The conveying unit 145 including the gear 146 and the chain 147 is disposed in a pair at a predetermined interval in the Y direction. On the chain 147, configured with The outer protruding transfer member 148. The transfer member 148 is provided in plural by an interval longer than the total length of the box body 11 in the X direction. The transfer member 148 abuts against the rear end of the transfer direction of the box blank, and the box blank is moved in the X direction by the rotation of the chain 147.

(Composition of pre-folded portion 106)

As shown in FIGS. 21 and 22, the pre-folded portion 106 includes a flat plate 149 which is located above the conveying surface of the guide rail 142, and a bending member 151 which is located below the conveying surface of the guide rail 142.

The flat plate 149 is located above the bending line 31 on the second wall portion 26b of the reinforcing wall 26 of the box blank disposed on the guide rail 142. The lower end of the flat plate 149 can be moved up and down between the upper surface of the box and the upper surface of the box by the cylinder 150 at a specific interval with respect to the conveying surface of the guide rail 141. The total length of the flat plate 149 is shorter than the total length of the box blank in the X direction and longer than the total length of the bottom wall 12 in the X direction. Thereby, one of the pair of bending lines 31, 31 which is located on the straight line in the X direction can be positioned by the one flat plate 149.

The bending member 151 is located under the reinforcing column forming portion 24 of the box blank disposed on the guide rail 142, and is located in the vicinity of the bending line 31 at the lower portion of the first wall portion 26a of the reinforcing wall 26. The upper end of the bending member 151 can be raised and lowered by the cylinder 152 between the conveying surface of the lower surface of the casing, that is, the conveying surface of the guide rail 142 and the Y direction of the inner wall 27. In the bending member 151, an arcuate chamfered portion 153 is provided at an upper end portion on the side of the bending line 31 (see FIG. 23A).

As shown in Fig. 23A, when the box blank is disposed in the pre-folded portion 106, as shown in Fig. 23B, the flat plate 149 is lowered and placed along the bending line 31 of the cover blank. Then, as shown in FIG. 23C, the bending member 151 is raised, and the first wall portion 26a is bent with respect to the second wall portion 26b around the bending line 31. Thereby, the reinforcing wall 26 of the column forming portion 24 can be reinforced to form a crease along the bending line 31. By the crease, when the edge wall 20 is bent with respect to the end walls 13A, 13B by the molding portion 111 of the subsequent step, the reinforcing wall 26 can be protruded inward with the bending line 31 as the top.

Next, after the bending member 151 is lowered and returned to the origin, the flat plate 149 is placed thereon. Rise back to the origin. After the operation, the reinforcing column forming portion 24 of the box blank is restored in such a manner as to be flatly positioned on the end walls 13A, 13B by the rigidity (toughness) of the corrugated cardboard sheet 1. When a series of pre-folding operations are completed, the conveying unit 145 operates to convey the box blank to the fastening unit 108.

(Configuration of First Coating Unit 107)

As shown in FIGS. 20 and 22 , the first application unit 107 is disposed between the second section 126 and the third section 127 . The first coating unit 107 includes a pair of coating devices 154 and 154 that are disposed at a predetermined interval in the Y direction orthogonal to the X (transport) direction. Each of the coating devices 154, 154 can spray the adhesive toward two different locations. The applicator 154 on the left side in the transport direction ejects the adhesive on both sides of the bend line 21 on the left side of the end walls 13A, 13B. The applicator 154 located on the right side in the transport direction ejects the adhesive on both sides of the bend line 21 on the right side of the end walls 13A, 13B. Thereby, an adhesive is applied to the box blank linearly on the both sides of the end walls 13A and 13B and the center of each of the edge walls 20.

(Configuration of the fixing portion 108)

As shown in FIGS. 20 and 22, the fastening portion 108 includes a positioning member 155 that positions adjacent to the bending line 28 on the edge wall 20, and a folding member 161 that bends the folding wall 25 relative to the edge wall 20. And a pressing member 166 that presses the reinforcing post forming portion 24 . The fixing portion 108 is disposed to be movable in the vertical direction, and includes a stopper (not shown) that stops the conveyed box blank at a predetermined position.

As shown in FIGS. 20 and 22, the positioning members 155 are respectively disposed near the four corners of the bottom wall 12 of the box blank. As shown in FIG. 24A, each positioning member 155 includes a coupling portion 156 that extends in the Y direction orthogonal to the X (transport) direction. Each of the coupling portions 156 is disposed to extend across the bottom wall 12 and the side walls 15A and 15B. A pair of arms 157 and 157 are provided in each of the connecting portions 156. The arm 157 of the positioning member 155 disposed on the front side in the conveying direction protrudes toward the front side in the conveying direction. The arm 157 of the positioning member 155 disposed on the rear side in the conveying direction protrudes toward the rear side in the conveying direction. One arm 157 protrudes from the side walls 15A, 15B side, and the other arm 157 protrudes from the side of the bottom wall 12.

As shown in FIG. 22, four positioning members 155 are coupled to one frame 158. Frame 158 can be profitable The cylinder 159 is moved up and down between the upper portion of the bottom wall 12 and the upper surface of the bottom wall 12 with respect to the bottom wall 12. Inside the casing 158, cylinders 160 for advancing and retracting the positioning member 155 in the conveying direction are disposed. In a state where the cylinder 160 is retracted, the arm 157 of the positioning member 155 is located on the bottom wall 12 and the side walls 15A, 15B. In a state where the cylinder 160 is advanced, one or more of the total length of the arms 157 of the positioning member 155 is located on the end walls 13A, 13B and the rim wall 20.

As shown in FIGS. 20 and 22, the folding member 161 is disposed below each of the reinforcing column forming portions 24 of the box blank. Referring to Fig. 24A, the folding member 161 is formed in a quadrangular column shape extending in the conveying direction, and includes a chamfered portion 162 on the side walls 13A, 13B of the upper surface. The folding member 161 includes a coupling member 163 that protrudes downward from the outer side of the lower surface in a state of being viewed in the transport (X) direction. On the lower portion of the folding member 161, on the side walls 13A, 13B of the coupling member 163, a space 164 for preventing dryness from the support rail 144 is formed. The connecting member 163 is coupled to the driving unit 165. The driving unit 165 sets the upper surface of the folding member 161 in conformity with the conveying surface of the guide rail 142, and the inner side surface of the folding member 161 in the Y direction is located in the vicinity of the bending line 28 of the reinforcing column forming portion 24 as the origin, and the folding portion is folded. The inlet member 161 moves upward and inward in the Y direction.

As shown in FIGS. 20 and 22, the pressing members 166 are respectively disposed on both sides of the end walls 13A, 13B of the box blank. As shown in FIG. 24A, the pressing member 166 includes a substrate 167 that extends to substantially the center of the end walls 13A, 13B and the edge wall 20. On the substrate 167, a pair of pressing portions 168 and 168 for pressing the side portions of the end walls 13A and 13B of the case blank coated with the adhesive and the center of the edge wall 20 are protruded. The pressing member 166 can be lifted and lowered between the upper portion of the box blank and the upper surface of the box blank by the driving portion 169.

In the fixing portion 108, a box blank is disposed along the guide rail 142 from the pre-folding portion 106. Then, as shown in Fig. 24B, the positioning member 155 is lowered, and the positioning member 155 is placed on the upper surface 12 of the casing and the upper surfaces of the side walls 15A, 15B. Then, as shown in Fig. 24C, the positioning member 155 is advanced, and the arms 157, 157 are disposed on the upper surfaces of the end walls 13A, 13B of the box blank and the edge wall 20. Thereby, since the edge wall 20 of the box blank is positioned, the folded wall 25 can be along the bending line 28 and The edge wall 20 is surely bent. Further, the reinforcing wall 26 can be prevented from being bent along the bending line 31 to which the crease is attached.

Next, as shown in FIG. 24D, the folding member 161 is moved upward from the lower portion (origin) of the folding wall 25, and the reinforcing column forming portion 24 is bent upward with respect to the edge wall 20 (first folding step) . Then, as shown in FIG. 24E, the folding member 161 is moved inward in the Y direction toward the end walls 13A and 13B, and the reinforcing post forming portion 24 is bent inward with respect to the edge wall 20 (second folding step) ). Then, as shown in Fig. 24F, the positioning member 155 is retracted so that the arms 157, 157 are located on the upper surface of the bottom wall 12 and the side walls 15A, 15B of the box blank.

Thereafter, as shown in FIG. 24G, the folding member 161 is moved downward (the third folding step), and the pressing member 166 is moved downward at the same time. At this time, the folding member 161 and the pressing member 166 are located at a position separated by a gap that does not dry. Thereby, the folded-back wall 25 is superposed on the edge wall 20 of the box blank, and the inner wall 27 is superposed on the end walls 13A, 13B. The edge wall 20 and the folded-back wall 25, and the end walls 13A, 13B and the inner wall 27 are pressure-bonded by pressing of the applied adhesive and the pressing member 166. In this manner, since the folding member 161 moves upward from the origin and moves inward, it moves downward, so that the folding wall 20 can surely overlap the edge wall 20.

Next, the positioning member 155, the folding member 161, and the pressing member 166 are returned to the origin. Specifically, the positioning member 155 and the pressing member 166 are raised. The folding member 161 is raised, and then moved outward while moving away from the end walls 13A, 13B, and then lowered. Then, after a series of folding operations are completed, the conveying unit 145 operates to convey the box blank to the converting unit 109.

(Configuration of conversion unit 109)

As shown in FIG. 20, the conversion unit 109 includes an elevator 170 having four mounting portions 171 located at the front ends of the guide rails 142 and the support rails 144. Referring to Fig. 25, the placing portion 171 sets the state in which the upper surface coincides with the conveying surface of the guide rail 142 and the support rail 144 as the origin, and can be moved upward by a driving mechanism (not shown).

As shown in FIG. 20, the transfer unit 109 transfers the transfer unit 145 to the placement unit 171 (X). The direction leading end side includes a guide plate 172 that extends across the ends of the fourth and fifth sections 128 and 129 and extends in the Y direction. The guide plate 172 extends upward from the lower side of the mounting portion 171 that has returned to the origin to the upper side of the raised mounting portion 171. Thereby, the box blank conveyed along the guide rail 142 is stopped by the elevator 170 by abutting against the guide plate 172.

As shown in FIGS. 20 and 25, the conversion unit 109 includes a pair of guide rails 173 and 173 that match the position where the placing unit 171 has been raised. The guide rails 173, 173 are located at a position separated by a gap of the total length of the box blank in the X direction. The conversion unit 109 includes an extrusion unit 174 that moves the box blank that has been raised by the elevator 170 toward the molding unit 111 side along the guide rail 173. The extrusion portion 174 is disposed on the right side of the guide rail 173 on the right side in FIG. The extrusion unit 174 includes a slider 175 that can advance and retreat along the guide rail 173 by a drive mechanism (not shown). The slider 175 can be advanced into the fifth section 129 as indicated by a one-dot chain line in FIG.

After the transfer unit 109 moves the billet to the elevator 170, the elevator 170 is operated to raise the billet to the height of the guide rail 173. Thereafter, the slider 175 is advanced to move the box blank on the elevator 170 to the molding portion 111 in the Y direction along the guide rail 173.

(Configuration of Second Coating Unit 110)

As shown in FIGS. 20 and 25 , the second application unit 110 is disposed between the fourth section 128 and the fifth section 129 . The second coating unit 110 includes a pair of coating devices 176 and 176 arranged at a predetermined interval in the X direction orthogonal to the Y (transport) direction. Each of the coating devices 176, 176 sprays an adhesive toward a portion where the edge walls 20 of the side walls 15A, 15B overlap. Thereby, an adhesive agent is applied linearly to both sides of the side walls 15A and 15B in the box blank.

(Configuration of the molding portion 111)

As shown in the clearest representation in Fig. 26, the molding portion 111 includes a first bent portion 177 which bends the edge wall 20 with respect to the end walls 13A, 13B, and a second bent portion 191 which enables The end walls 13A, 13B and the side walls 15A, 15B are bent relative to the bottom wall 12. Referring to Fig. 25, molding portion 111 includes guide portion 205 that guides the transfer of the blank from the conversion portion 109 to a predetermined position.

(Configuration of the first bent portion 177)

As shown in FIG. 26 and FIG. 27A, the first bent portion 177 includes: a fixed lower mold 178 disposed at the lower end of the end walls 13A, 13B and the edge walls 20 on both sides; and a movable upper mold 183, It is located on the upper side with a space apart from the lower mold 178.

As shown in the sharpest representation in Fig. 27A, the lower mold 178 includes a guide plate 179 located forward of the upper die 183, i.e., below the edge walls 20, 20. The guide plate 179 includes a flat plate portion 180 which is located in the vicinity of the bending line 21 of the edge wall 20, and a bent portion 181 on the upper side of the flat plate portion 180 which is bent away from the end walls 13A, 13B. The bent portion 181 is guided such that the edge wall 20 has the bending line 21 as a center and is bent with respect to the end walls 13A and 13B. The top of the upper side of the bent portion 181 is located at the same height as the conveying surface of the guide rail 173. Referring to Fig. 25, the guide plate 179 on the distal end side in the transport (Y) direction includes a stopper portion 182 that protrudes upward from the end edge of the bent portion 181. The stopper portion 182 stops the box blank conveyed to the molding portion 111 at a predetermined position.

As shown in FIG. 27A, the upper mold 183 includes a frame 185 that is configured to be lifted and lowered between the upper side and the lower side of the guide rail 173 by the cylinder 184. The frame 185 is a rectangular tubular shape in which both ends of the X direction are open, and includes a mounting shaft 186 extending in the Y (transport) direction. On the mounting shaft 186, a pair of forming plates 187 in a plate shape are slidably mounted. The molding plate 187 includes an opening portion 188 through which the lower wall of the frame body 185 is inserted (refer to Fig. 26). The molding plate 187 is disposed between one of the pair of stopper portions 189A and 189B disposed on the mounting shaft 186. Between the molding plate 187 and the inner stopper portion 189B, a pressing member 190 that presses the stopper portion 189A toward the outer side of the molding plate 187 is disposed. Thereby, the state in which the molding plate 187 abuts against the stopper portion 189A is set as the origin, and is slidable to the stopper portion 189B side against the pressing force of the pressing member 190.

As shown in the most clear representation in Fig. 28A, the origin of the forming plate 187 is located in the first blank of the reinforcing member 26 in the box blank which is bonded to the end walls 13A, 13B and the edge wall 20 by the reinforcing post forming portion 24. Near the fold line 29. Thereby, the forming plate 187 can be directed away from the folding wall 25 (self-returning The folded wall 25 slides sideways toward the reinforcing wall 26 side. The pressing member 190 presses the molding plate 187 from the side of the reinforcing wall 26 toward the side of the folded wall 25. As shown in Fig. 27B, the forming plate 187 at the origin position is located on the bent portion 181 of the guide plate 179, and does not interfere with the bent portion 181 when the upper mold 183 is directly lowered. However, when the lowering of the upper mold 183 is continued, the molding plate 187 slides inward along with the bending of the bent portion 181, and is located on the inner surface side of the flat plate portions 180 and 180.

As shown in FIG. 28A, when the box blank is conveyed to the molding portion 111, the first bent portion 177 moves the upper mold 183 downward. Then, the molding plate 187 abuts against the vicinity of the bending line 29 of the box blank, and presses the box blanks together downward. In this state, the bending line 29 of the reinforcing post forming portion 24 is located further outward than the bending line 21 between the end walls 13A, 13B and the edge wall 20 (on the bent portion 181).

When the lowering of the upper mold 183 is continued, as shown in Fig. 28B, the edge wall 20 is bent with respect to the end walls 13A, 13B as the bent portion 181 is bent. Then, since the bending line 29 of the reinforcing column forming portion 24 is located at a position separated by the interval L3 from the bending line 21, the bending line 21 is moved toward the end walls 13A, 13B. By this movement, the folded-back wall 25 and the reinforcing wall 26 are bent around the bending line 29. Further, the molding plate 187 moves toward the end walls 13A, 13B while following the movement, and guides the bending of the folding wall 25 and the reinforcing wall 26 centering on the bending line 29. Therefore, the bending at different positions can be prevented, and the reinforcing wall 26 can be surely bent along the bending line 29 and with respect to the folding wall 25. The edge wall 20 and the folding wall 25 which have been bonded together are sandwiched between the guide plate 179 and the molding plate 187. The reinforcing wall 26 that is bonded to the inner wall 27 of the end walls 13A and 13B is bent by the pre-folding portion 106 so that the first and second wall portions 26a and 26b are bent at the top with the crease line 31 attached thereto. Fold and stand up.

(Configuration of the second bent portion 191)

As shown in FIGS. 25 and 26, the second bent portion 191 includes a fixed female die 192 located at the outer peripheral portion of the bottom wall 12, and a movable male die 199 located on the upper side of the bottom wall 12. Further, it includes a bottom support portion 202 that supports the bottom wall 12 of the assembled box body 11.

The female mold 192 includes a first mold portion 193 disposed at a lower portion of the end walls 13A, 13B, and a second mold portion 196 disposed at a lower portion of the side walls 15A, 15B. The dies 193 and 196 are arranged in the first The lower portion of the lower portion 178 of the bent portion 177 is bent after the edge wall 20 is bent relative to the end walls 13A, 13B, and the end walls 13A, 13B and the side walls 15A, 15B are sequentially bent relative to the bottom wall 12.

The first die portion 193 is disposed between the guide plates 179 and 179. The end surface of the first mold portion 193 on the side of the bottom wall 12 is located near the bending line 14 below the end walls 13A, 13B. The first inclined portion 194 is provided on the upper portion of the bottom wall 12 side of the first mold portion 193. The first inclined portion 194 is such that the end walls 13A and 13B are centered on the bending line 14 and are opposite to the bottom wall 12. Guide the way by bending. On the lower side of the first mold portion 193, a first holding portion 195 for maintaining the state in which the end walls 13A, 13B are bent with respect to the bottom wall 12 is provided.

The second mold portion 196 is disposed in a pair on the side of the side walls 15A and 15B. The end surface of the second mold portion 196 on the side of the bottom wall 12 is located near the bending line 16 below the side walls 15A, 15B. The second inclined portion 197 is provided on the upper portion of the bottom wall 12 side of the second mold portion 196. The second inclined portion 197 is formed such that the side walls 15A and 15B are bent with respect to the bottom wall 12 with the bending line 16 as the center. The way to guide. The second inclined portion 197 is formed at a gentler inclination angle than the first inclined portion 194 such that the side walls 15A, 15B are bent relative to the bottom wall 12 after the end walls 13A, 13B are bent relative to the bottom wall 12. fold. On the lower side of the second mold portion 196, a second holding portion 198 for maintaining the state in which the side walls 15A, 15B are bent with respect to the bottom wall 12 is provided. The second holding portion 198 is located on the outer side of the edge wall 20 in a state where the end walls 13A, 13B are bent with respect to the bottom wall 12.

The male mold 199 includes a press-in portion 200 at four corners of the bottom wall 12. The press-fitting portion 200 is formed in a quadrangular column shape extending in the vertical direction, and is disposed in the vicinity of the bending lines 14 and 16 on the bottom wall 12. The total length of the press-in portion 200 is longer than the total length of the end walls 13A, 13B. The male mold 199 can be moved up and down between the upper side and the lower side of the guide rail 173 by the drive unit 201. In detail, the male mold 199 can be lowered to the lower side of the guide rail 173, that is, the height within the holding portions 195, 198 of the female mold 192.

The bottom support portion 202 is located at a lower central portion of the bottom wall 12. The bottom support portion 202 can be raised and lowered by the cylinder 203 to abut against a raised position of the bottom wall 12 lowered by the male mold 199 and a lowered position where the bottom wall 12 is not abutted. The bottom support portion 202 includes a suction pump connected to a pump (not shown) The attraction member 204.

The second bent portion 191 moves the bottom support portion 202 to the raised position almost simultaneously with the lowering of the upper mold 183 of the first bent portion 177. Then, in a state where the upper mold 183 has been lowered in the first bent portion 177, the male mold 199 starts to descend. Once the male mold 199 reaches the height of the bottom wall 12 that abuts the box blank, the drop is stopped. In this state, the upper die 183 of the first bent portion 177 starts to rise. Thereby, the box blank is prevented from rising together with the upper mold 183 of the first bent portion 177.

When the upper mold 183 rises, the male mold 199 of the second bent portion 191 starts to descend again. Then, the bottom wall 12 of the box blank is pressed from above by the male mold 199, and the bottom wall 12 is moved downward toward the inside of the female mold 192. Thereby, the end walls 13A and 13B are bent with respect to the bottom wall 12 by the first inclined portion 194 of the first mold portion 193. Thereafter, the second inclined portions 197 of the second mold portion 196 are used to bend the side walls 15A and 15B with respect to the bottom wall 12. As a result, the side walls 15A and 15B are overlapped on the outer surface side of the edge wall 20 which is connected to the end walls 13A and 13B.

Then, by further lowering the male mold 199, the box body 11 in which the end walls 13A, 13B and the side walls 15A, 15B are erected on the bottom wall 12 is moved into the holding portions 195, 198. Thereby, both sides of the side walls 15A and 15B to which the adhesive is applied and the edge wall 20 are inserted between the second holding portion 198 and the press-fitting portion 200 and are pressure-bonded. The bottom wall 12 abuts against the bottom support portion 202 and is attracted by the attraction member 204. By returning to the origin by raising the male mold 199 in this state, the tank body 11 is prevented from rising together with the male mold 199.

(Configuration of the guiding unit 205)

As shown in FIGS. 20 and 25, the guide portion 205 includes a pair of holding members 206 and 206 disposed between the pair of second mold portions 196 and 196. The holding member 206 is rotatable by a cylinder 207 between a holding position in the horizontal direction indicated by a solid line in FIG. 25 and a retracted position in which the one-point chain line in FIG. 25 extends downward. The holding member 206 of the holding position is located at the same height as the conveying surface of the guide rail 173. The holding member 206 at the retracted position is located outside the second holding portion 198, and does not interfere with the press-fitting of the box blank by the male mold 199.

As shown in FIG. 26, the first mold portion 193 of the second bent portion 191 also functions as the guide portion 205. The first mold portion 193 can be moved up and down between the lowered position indicated by the solid line in FIG. 26 and the raised position indicated by the one-dot chain line in FIG. 26 by a cylinder (not shown). The first mold portion 193 at the lowered position bends the end walls 13A, 13B with respect to the bottom wall 12 as described above. The first mold portion 193 at the rising position is located at the same height as the conveying surface of the guide rail 173.

The guide portion 205 simultaneously rotates the holding member 206 to the holding position and raises the first mold portion 193 to the raised position simultaneously with the operation of the transfer unit 109 to start the conveyance of the box blank. Thereby, it is guided so as to ensure a position on the same horizontal plane as the guide rail 173 and convey the box blank to a predetermined position of the molding portion 111. Then, after the box blank is transported to the predetermined position, the holding member 206 is rotated to the retracted position, and the first mold portion 193 is lowered to the lowered position. Thereafter, the first and second bent portions 177 and 191 start to operate.

In such a box making apparatus 101, the box blank disposed in the paper feed unit 104 is conveyed piece by piece, and the folds along the bending line 31 of the reinforcing wall 26 are formed by the pre-folded portion 106. Then, after applying the adhesive to the specific position of the box blank by the first coating unit 107, the reinforcing post forming portion 24 is folded by the fixing portion 108 to the end walls 13A and 13B and the edge wall 20, and is fixed. Then, the transfer unit 109 converts the conveyance direction of the box blank, and the second application unit 110 applies an adhesive to the specific position of the box blank. Thereafter, the edge wall 20 is bent with respect to the end walls 13A, 13B by the molding portion 111, and then the end walls 13A, 13B are bent relative to the bottom wall 12, so that the side walls 15A, 15B are opposed to the bottom wall 12 is bent, and the side walls 15A, 15B are overlapped with the edge wall 20 and fixed. Thereby, the box body 11 having the reinforcing post 24A protruding inward can be automatically boxed.

The box making device 101 of the present invention is not limited to the configuration of the above embodiment, and various modifications can be made.

For example, in the above-described embodiment, the pre-folding portion 106 is provided as the previous step of the fixing portion 108, but the thick wall of the corrugated cardboard sheet 1, the distance between the cores 4, the bending property of the bending line 31, and the like are considered. Sheet processing property, in the case of easy bending, it is also possible to set no pre-folding The composition of 106. The positioning member 155 is provided in the fixing portion 108. However, in consideration of the sheet workability, the positioning member 155 may not be provided in the case of being easily bent. The molding portion 111 is provided with a molding plate 187 slidable in the upper mold 183. However, in consideration of the sheet workability, it is also possible to provide only the upper end wall 13A, 13B over the mold 183 in the case of easy bending. Instead of the forming plate 187.

10‧‧‧Package box

11‧‧‧ box body

12‧‧‧ bottom wall

13A‧‧‧End wall

13B‧‧‧End wall

15A‧‧‧ Sidewall

15B‧‧‧ Sidewall

17‧‧‧Design cut line

18‧‧‧Open Operations Department

20‧‧‧

22‧‧‧ Attached to the wall

24A‧‧‧Strengthen column

25‧‧‧Return wall

26‧‧‧ Strengthening the wall

27‧‧‧ inner wall

28‧‧‧Bending line

29‧‧‧Bending line

30‧‧‧Bending line

31‧‧‧Bend line

33‧‧‧ cover

34‧‧‧ Cover body

35‧‧‧1st Attachment

36‧‧‧2nd Attachment

37A‧‧‧Bend

Claims (15)

A packaging box, comprising: a bottom wall; an end wall erected on a first edge of the bottom wall; and a side wall adjacent to the end wall and erected on a second edge of the bottom wall, the second edge And extending in a direction intersecting the first edge; the edge wall is connected to a side edge of the end wall via an outer wall bending line, and is fixed to an inner side surface of the adjacent side wall; and the folded wall is disposed at the edge An inner side surface of the wall; an inner wall disposed on an inner side surface of the end wall; and a reinforcing wall continuous with the return wall via the first bending line and continuous with the inner wall via the second bending line The folding wall and the inner wall are provided to protrude inwardly, and the first or second bending line on the side of the outer wall bending line of the first and second bending lines is opposite to the outer wall bending line. Configured at intervals. The package according to claim 1, wherein the inner wall is fixed to the end wall, and the first bending line on which the protruding top portion is closer to the outer wall bending line side is disposed at an interval with respect to the outer wall bending line. The reinforcing wall protrudes inward from the end wall side. A package according to claim 1 or 2, wherein a third bending line extending in parallel with the first and second bending lines of the reinforcing wall is provided. The packaging box of claim 3, wherein the packaging paper-based corrugated cardboard sheet is provided on the reinforcing wall in a manner of including the third bending line and having a specific width A corrugated flat portion obtained by compressing a thick wall of the above-mentioned paper corrugated cardboard sheet is placed. A package according to claim 1, wherein said return wall is fixed to an inner side surface of said edge wall. The package of claim 1, wherein the return wall, the reinforcing wall, and the inner wall are integrally provided to the edge wall. A box making device, characterized in that the package box of claim 2 is automatically boxed, and comprising: a first coating portion that applies an adhesive to a portion of the inner wall or the inner wall of the end wall that overlaps; a fixing portion that bends the folding wall with respect to the edge wall, and fixes the inner wall continuous with the folding wall to the end wall; and the second coating portion faces the edge wall or the side wall a portion of the edge wall overlapped with an adhesive; and a molding portion that bends the edge wall with respect to the end wall to bend the first and second bending lines on both sides of the reinforcing wall to enhance the reinforcement The wall projects inwardly, and then the end wall is bent relative to the bottom wall, and the side wall is bent relative to the bottom wall, and the edge wall is fixed to the side wall. The box forming apparatus according to claim 7, wherein the molding portion has a molding plate disposed in the vicinity of the first bending line, and the reinforcing wall is bent when the edge wall is bent with respect to the end wall Guided along the first bending line and bent relative to the folding wall. The box forming apparatus according to claim 8, wherein the molding portion has an upper mold that is slidably disposed from the side of the folding wall toward the reinforcing wall side, and a lower mold that is disposed in the upper mold The forward direction is forward and the bending of the edge wall with respect to the end wall is guided. A box forming apparatus according to claim 9, comprising a pressing member that presses the formed plate from the reinforcing wall side toward the folded wall side. The box forming apparatus of claim 9 or 10, wherein the molding portion has: a male mold that presses the bottom wall from above to move the blank of the packaging box downward; and a female mold disposed in the lower mold The lower end and the end wall and the side wall are bent relative to the bottom wall by movement of the blank by the male mold. The box forming apparatus according to claim 7, wherein the fixing portion has a folding member that bends the folding wall with respect to the edge wall, and a pressing member that presses at least the inner wall to the end wall. The box forming apparatus of claim 12, wherein the fixing portion further has a positioning member that positions the vicinity of the bending line between the edge wall and the folding wall. The box making device of claim 12 or 13, wherein the folding member is bent by bending the folding wall relative to the edge wall by a first folding step of folding the member from the folding wall Moving the lower portion upward to bend the folding wall upward with respect to the edge wall; and in the second folding step, the folding member moves inward toward the end wall side so that the folding wall faces inward with respect to the edge wall And a third folding step of moving the folding member downward so that the folding wall overlaps the edge wall. The box-making apparatus according to claim 7, wherein before the first coating portion, a pre-form is formed by bending the reinforcing wall along a third bending line provided between the first and second bending lines to form a crease Folded part.